Touchscreen Controller Interface Assembly With Conductive Adhesive Contacts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing controller interfaces for refrigerating machines face complexity in assembly and unreliable electrical connections, particularly in hostile environments, leading to issues like oxidation of contacts.
Innovation Solution
A controller interface with a screen and PCB connected via conductive adhesive through frame openings, ensuring direct contact and sealing, using a conductive adhesive to maintain electrical connection and protect against environmental effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional assembly methods with terminals and PCB sockets are used, then electrical connection can be established, but the assembly process becomes complex and connection reliability deteriorates in hostile environments
Solution Approach 1:
The patent merges the terminal and PCB socket into a single integrated connection system. The conductive adhesive directly bonds the screen's terminal to the PCB, eliminating the separate socket component. This integration simplifies the assembly process while maintaining reliable electrical connection, especially in hostile environments where oxidation resistance is critical.
Solution Approach 2:
The patent introduces conductive adhesive as an intermediary substance between the terminal and PCB contacts. This adhesive serves dual functions: mechanically bonding the components together and providing electrical conduction. The adhesive's oxidation-resistant properties protect the electrical connection in hostile environments, solving both the complexity and reliability issues simultaneously.
2Reliability
If elastic elements are inserted into PCB socket to ensure efficient electrical connection, then connection reliability improves, but the production process becomes complex and insertion difficulty increases
Solution Approach 1:
The patent extracts the elastic elements from the assembly, eliminating them entirely. Instead of inserting complex elastic elements into PCB sockets, the invention uses a simpler conductive adhesive that directly bonds and conducts electricity between the terminal and PCB contacts. This extraction simplifies the manufacturing process while maintaining connection efficiency through the adhesive's conductive properties.
Solution Approach 2:
The patent replaces the mechanical elastic element system with a chemical bonding system using conductive adhesive. The adhesive provides both mechanical attachment and electrical conduction through its material properties, eliminating the need for complex mechanical elastic elements. This substitution dramatically simplifies production while ensuring reliable electrical connection.
3Reliability
If precise and homogeneous dimensions of elastic elements are used, then reliable conductive bridge is formed, but excessive complexity is introduced in insertion and coupling
Solution Approach 1:
The patent replaces the precision-machined elastic elements with conductive adhesive that forms the conductive bridge. The adhesive's fluid state during application allows it to conform to surfaces and form reliable electrical connections without requiring precise dimensional control. This substitution eliminates the complexity of insertion and coupling operations while maintaining conductive bridge reliability through the adhesive's inherent bonding and conducting properties.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies assembly, ensures reliable and durable electrical connections, and enhances durability in adverse conditions by preventing oxidation and false contacts.
Implementation Method 1
a conductive adhesive (140) which connects each first contact (11b) to the corresponding second contact (120a) through the respective opening (130a) of the frame (130)
Implementation Method 2
ensures reliable and durable electrical connections, and enhances durability in adverse conditions by preventing oxidation and false contacts
Data Source
AI summary
Controller interface (100) comprising;—a screen (110) having a front face (110a) and a back face (110a) and comprising an operative layer (111) having pads (111a) and a plurality of first contacts (111b) for forming a touch screen;—an electronic device (120) having a plurality of second contacts (120a);—a frame (130) for supporting the screen (110) and the electronic device (120). The frame (130) has through-openings (130a) each corresponding to a first contact (111b) which defines a portion. The electronic device (120) is configured so that the second contacts are positioned so as to face the first contacts (111b) through the openings (130a). A conductive adhesive (140) connects each first contact (11b) to the corresponding second contact through the respective opening (130a) of the frame (130).